#include<stdio.h>
#include<string.h>
void main(){
    int n=0,i;
    char s[81]={'\0'};
    gets(s);
    i=0;
    while(s[i]!='\0'){
        if(!(s[i]>='A'&&s[i]<='Z')){
            s[n++] = s[i];
        }
            i++;
    }
    s[n]='\0';
    puts(s);
}